Sight glasses and light fitting
Alfa Laval sight glass for tanks are accurate gage glasses that permit direct distortion-free visual inspection of process conditions, products, liquid levels and cleaning inside vessels used in the dairy, food and beverage, personal care and biopharma industries.
Reliable and clear visibility
- Reliably clear viewing quality
- Provide clear, continuous and unobstructed visibility of processes
- Sight glass construction and range
The Alfa Laval sight glass for tanks consists of seven different models that are mounted or welded onto or into pressurized, non-pressurized and high-temperature tanks or vessels, or pipe systems.
Made with borosilicate glass according to DIN 7080 and long-lasting, specially formulated gaskets, these sight glasses are resistant to different pressures, temperatures and can be used in various applications.
Sight glass for tanks construction and range
Reliably clear viewing quality
Alfa Laval sight glasses provide clear, continuous and unobstructed visibility of processes or products in tanks or vessels. Quick and easy to install, Alfa Laval sight glass lighting provide reliable operation, low maintenance requirements and the means for early detection and response that can help prevent costly downtime.
Construction
The construction of the Alfa Laval sight glass types varies, depending on the type of sight glass. For more information, please refer to the specific types below.
Sight glass DIN 11851
Typically used in tanks with high pressures and temperatures, this bolted sight glass consists of a base flange, which welded onto or into the tank wall, a cover flange, gaskets, a glass disc, nuts and studs. Provided that the flange is welded correctly onto/into the tank, the flange thickness guarantees a distortion-free location for the glass disc. The sight glass can be fitted with an optional miniVision light fitting.
Sight glass DIN 28120
The sight glass is engineered with a welding nozzle that is welded onto the tank wall, a grooved collar nut, a glass disc and two gaskets. The sight glass comes in sizes from DN50 (with a free view of 50 mm) to DN150 (with a free view of 150 mm). The sight glass can be fitted with an optional miniVision light fitting.
Sight glass types LKS 78, 105 and 120
Sight glass type LKS is available in three types. Sight glass type LKS 105 (free view: 105 mm) is designed for installation above the liquid level in pressure-less storage tanks. Sight glass types LKS 78 (free view: 78 mm) and LKS 120 (free view: 120 mm) are designed for pressure tanks. All LKS sight glasses consist of a threaded flange, which is welded onto the tank, gaskets, a glass disc and a retaining ring.
Sight glass Elongated
The elongated sight glass is used for the observation of the liquid level or reaction within the tank or vessel. It consists of a base flange that is welded into or onto the tank wall, a cover flange, a glass disc and gaskets.
Two versions of the Alfa Laval elongated sight glass are available.
· DB version has a base flange with bolt tappings drilled through
· SLversion has a base flange with blind tappings
Sight glass Metal-fused
Suitable for food processing and sterile applications, the Alfa Laval sight glass metal-fused is mounted on clamp fittings in accordance with DIN 32676.
Sight glass LKFL in-line
The LKFL in-line sight glass for tanks is used in processes that require observation of a product in a pipeline.
It consists of a tube with two screw connections for the glass. The connections are placed opposite each other to enable positioning of the glass very close to the internal wall of the tube.
An optional halogen light source, which is fitted onto one of the sockets, is available. The halogen light source consists of two stainless steel tubes assembled with a clamp.
The standard LKFL connections are welding ends. Upon request, the LKFL is also available with male part connections.
Sight glass LKG in-line
The Alfa Laval LKG in-line sight glass is used in pipe systems where a visual observation of the product flow is necessary. Two types are available: the LKGG-1 and the LKGL-1.
The LKGG-1 consists of a perforated stainless steel shield tube fitted with a welding union at each end. A special glass tube is fixed in the shield tube so that it is unaffected by potential stresses in the pipelines.
The LKGL-1 is similar to LKGG-1, but has a stainless steel sight glass lighting fitting welded onto the shield tube, allowing the product to be illuminated.
Каталог „На една ръка разстояние“
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Услуги
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Резервни части Техническа поддръжка
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Part of a broad tank equipment range
Alfa Laval offers a comprehensive range of tank equipment intended for hygienic applications in the dairy, food, beverage,home care, personal care, biotechnology and pharmaceuticals.
For a broader tank equipment range, explorer the different product categories: rotary jet heads, rotary spray heads, tank accessories and tank covers.
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